Customer Rating: Summary: This book will be always excellent. Comment: I had this book when I was in College, all my courses on digital electronics were based on this book. Now I decide to get it again because I loose it. I do not need nothing more to refresh my knowledge about digital topics. Customer Rating: Summary: Highly Readable and Educational Comment: Very informative and easy to understand. Mano does a good job of introducing electronical engineering to the reader.